mirror of
https://git.do.srb2.org/STJr/SRB2.git
synced 2024-11-15 01:01:33 +00:00
Correct texture scaling, part 3
This commit is contained in:
Lactozilla
parent
10537deacf
commit
2f20f21eb6
2 changed files with 55 additions and 52 deletions
|
|
@ -757,6 +757,8 @@ typedef struct drawseg_s
|
|||
fixed_t bsilheight; // do not clip sprites above this
|
||||
fixed_t tsilheight; // do not clip sprites below this
|
||||
|
||||
fixed_t offsetx;
|
||||
|
||||
// Pointers to lists for sprite clipping, all three adjusted so [x1] is first value.
|
||||
INT16 *sprtopclip;
|
||||
INT16 *sprbottomclip;
|
||||
|
|
|
|||
99
src/r_segs.c
99
src/r_segs.c
|
|
@ -76,6 +76,7 @@ static fixed_t bottomfrac, bottomstep;
|
|||
static lighttable_t **walllights;
|
||||
static fixed_t *maskedtexturecol = NULL;
|
||||
static fixed_t *maskedtextureheight = NULL;
|
||||
static fixed_t *thicksidecol = NULL;
|
||||
static fixed_t *invscale = NULL;
|
||||
|
||||
//SoM: 3/23/2000: Use boom opening limit removal
|
||||
|
|
@ -535,7 +536,7 @@ void R_RenderThickSideRange(drawseg_t *ds, INT32 x1, INT32 x2, ffloor_t *pfloor)
|
|||
INT32 i, p;
|
||||
fixed_t bottombounds = viewheight << FRACBITS;
|
||||
fixed_t topbounds = (con_clipviewtop - 1) << FRACBITS;
|
||||
fixed_t offsetvalue = 0;
|
||||
fixed_t offsetvalue;
|
||||
lightlist_t *light;
|
||||
r_lightlist_t *rlight;
|
||||
INT32 range;
|
||||
|
|
@ -544,11 +545,13 @@ void R_RenderThickSideRange(drawseg_t *ds, INT32 x1, INT32 x2, ffloor_t *pfloor)
|
|||
// NOTE: INT64 instead of fixed_t because overflow concerns
|
||||
INT64 top_frac, top_step, bottom_frac, bottom_step;
|
||||
// skew FOF walls with slopes?
|
||||
boolean slopeskew = false;
|
||||
fixed_t ffloortextureslide = 0;
|
||||
INT32 oldx = -1;
|
||||
fixed_t left_top, left_bottom; // needed here for slope skewing
|
||||
pslope_t *skewslope = NULL;
|
||||
boolean do_texture_skew;
|
||||
UINT32 lineflags;
|
||||
fixed_t wall_scalex, wall_scaley;
|
||||
|
||||
void (*colfunc_2s) (column_t *);
|
||||
|
||||
|
|
@ -560,7 +563,7 @@ void R_RenderThickSideRange(drawseg_t *ds, INT32 x1, INT32 x2, ffloor_t *pfloor)
|
|||
curline = ds->curline;
|
||||
backsector = pfloor->target;
|
||||
frontsector = curline->frontsector == pfloor->target ? curline->backsector : curline->frontsector;
|
||||
texnum = R_GetTextureNum(sides[pfloor->master->sidenum[0]].midtexture);
|
||||
sidedef = &sides[pfloor->master->sidenum[0]];
|
||||
|
||||
colfunc = colfuncs[BASEDRAWFUNC];
|
||||
|
||||
|
|
@ -568,8 +571,13 @@ void R_RenderThickSideRange(drawseg_t *ds, INT32 x1, INT32 x2, ffloor_t *pfloor)
|
|||
{
|
||||
size_t linenum = curline->linedef-backsector->lines[0];
|
||||
newline = pfloor->master->frontsector->lines[0] + linenum;
|
||||
texnum = R_GetTextureNum(sides[newline->sidenum[0]].midtexture);
|
||||
sidedef = &sides[newline->sidenum[0]];
|
||||
lineflags = newline->flags;
|
||||
}
|
||||
else
|
||||
lineflags = pfloor->master->flags;
|
||||
|
||||
texnum = R_GetTextureNum(sidedef->midtexture);
|
||||
|
||||
if (pfloor->fofflags & FOF_TRANSLUCENT)
|
||||
{
|
||||
|
|
@ -721,7 +729,13 @@ void R_RenderThickSideRange(drawseg_t *ds, INT32 x1, INT32 x2, ffloor_t *pfloor)
|
|||
walllights = scalelight[lightnum];
|
||||
}
|
||||
|
||||
maskedtexturecol = ds->thicksidecol;
|
||||
wall_scalex = FixedDiv(FRACUNIT, sidedef->scalex_mid);
|
||||
wall_scaley = sidedef->scaley_mid;
|
||||
|
||||
thicksidecol = ds->thicksidecol;
|
||||
|
||||
for (INT32 x = x1; x <= x2; x++)
|
||||
thicksidecol[x] = FixedDiv(thicksidecol[x], wall_scalex) + ds->offsetx;
|
||||
|
||||
mfloorclip = ds->sprbottomclip;
|
||||
mceilingclip = ds->sprtopclip;
|
||||
|
|
@ -731,50 +745,28 @@ void R_RenderThickSideRange(drawseg_t *ds, INT32 x1, INT32 x2, ffloor_t *pfloor)
|
|||
left_top = P_GetFFloorTopZAt (pfloor, ds->leftpos.x, ds->leftpos.y) - viewz;
|
||||
left_bottom = P_GetFFloorBottomZAt(pfloor, ds->leftpos.x, ds->leftpos.y) - viewz;
|
||||
|
||||
do_texture_skew = lineflags & ML_SKEWTD;
|
||||
skewslope = *pfloor->t_slope; // skew using top slope by default
|
||||
if (newline)
|
||||
{
|
||||
if (newline->flags & ML_SKEWTD)
|
||||
slopeskew = true;
|
||||
}
|
||||
else if (pfloor->master->flags & ML_SKEWTD)
|
||||
slopeskew = true;
|
||||
|
||||
if (slopeskew)
|
||||
dc_texturemid = left_top;
|
||||
if (do_texture_skew)
|
||||
dc_texturemid = FixedMul(left_top, wall_scaley);
|
||||
else
|
||||
dc_texturemid = *pfloor->topheight - viewz;
|
||||
dc_texturemid = FixedMul(*pfloor->topheight - viewz, wall_scaley);
|
||||
|
||||
if (newline)
|
||||
{
|
||||
offsetvalue = sides[newline->sidenum[0]].rowoffset + sides[newline->sidenum[0]].offsety_mid;
|
||||
if (newline->flags & ML_DONTPEGBOTTOM)
|
||||
offsetvalue = sidedef->rowoffset + sidedef->offsety_mid;
|
||||
|
||||
if (lineflags & ML_DONTPEGBOTTOM)
|
||||
{
|
||||
skewslope = *pfloor->b_slope; // skew using bottom slope
|
||||
if (slopeskew)
|
||||
dc_texturemid = left_bottom;
|
||||
if (do_texture_skew)
|
||||
dc_texturemid = FixedMul(left_bottom, wall_scaley);
|
||||
else
|
||||
offsetvalue -= *pfloor->topheight - *pfloor->bottomheight;
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
offsetvalue = sides[pfloor->master->sidenum[0]].rowoffset + sides[pfloor->master->sidenum[0]].offsety_mid;
|
||||
if (curline->linedef->flags & ML_DONTPEGBOTTOM)
|
||||
{
|
||||
skewslope = *pfloor->b_slope; // skew using bottom slope
|
||||
if (slopeskew)
|
||||
dc_texturemid = left_bottom;
|
||||
else
|
||||
offsetvalue -= *pfloor->topheight - *pfloor->bottomheight;
|
||||
}
|
||||
offsetvalue -= FixedMul(*pfloor->topheight - *pfloor->bottomheight, wall_scaley);
|
||||
}
|
||||
|
||||
if (slopeskew)
|
||||
if (do_texture_skew && skewslope)
|
||||
{
|
||||
angle_t lineangle = R_PointToAngle2(curline->v1->x, curline->v1->y, curline->v2->x, curline->v2->y);
|
||||
|
||||
if (skewslope)
|
||||
ffloortextureslide = FixedMul(skewslope->zdelta, FINECOSINE((lineangle-skewslope->xydirection)>>ANGLETOFINESHIFT));
|
||||
}
|
||||
|
||||
|
|
@ -829,7 +821,7 @@ void R_RenderThickSideRange(drawseg_t *ds, INT32 x1, INT32 x2, ffloor_t *pfloor)
|
|||
if (ffloortextureslide)
|
||||
{
|
||||
if (oldx != -1)
|
||||
dc_texturemid += FixedMul(ffloortextureslide, maskedtexturecol[oldx]-maskedtexturecol[dc_x]);
|
||||
dc_texturemid += FixedMul(ffloortextureslide, thicksidecol[oldx]-thicksidecol[dc_x]);
|
||||
oldx = dc_x;
|
||||
}
|
||||
|
||||
|
|
@ -862,10 +854,10 @@ void R_RenderThickSideRange(drawseg_t *ds, INT32 x1, INT32 x2, ffloor_t *pfloor)
|
|||
continue;
|
||||
}
|
||||
|
||||
dc_iscale = 0xffffffffu / (unsigned)spryscale;
|
||||
dc_iscale = FixedMul(0xffffffffu / (unsigned)spryscale, wall_scaley);
|
||||
|
||||
// Get data for the column
|
||||
col = (column_t *)((UINT8 *)R_GetColumn(texnum, (maskedtexturecol[dc_x] >> FRACBITS)) - 3);
|
||||
col = (column_t *)((UINT8 *)R_GetColumn(texnum, (thicksidecol[dc_x] >> FRACBITS)) - 3);
|
||||
|
||||
// SoM: New code does not rely on R_DrawColumnShadowed_8 which
|
||||
// will (hopefully) put less strain on the stack.
|
||||
|
|
@ -1439,7 +1431,10 @@ static void R_RenderSegLoop (void)
|
|||
}
|
||||
|
||||
if (maskedtexturecol)
|
||||
maskedtexturecol[rw_x] = texturecolumn;
|
||||
maskedtexturecol[rw_x] = texturecolumn + rw_offsetx;
|
||||
|
||||
if (thicksidecol)
|
||||
thicksidecol[rw_x] = rw_offset - distance;
|
||||
|
||||
if (maskedtextureheight)
|
||||
{
|
||||
|
|
@ -1551,10 +1546,9 @@ static void R_AllocClippingTables(size_t range)
|
|||
static void R_AllocTextureColumnTables(size_t range)
|
||||
{
|
||||
size_t pos = curtexturecolumntable - texturecolumntable;
|
||||
size_t need = range * 3;
|
||||
|
||||
// For both tables, we reserve exactly an amount of memory that's equivalent to
|
||||
// how many columns the seg will take on the entire screen (think about it)
|
||||
if (pos + range < texturecolumntablesize)
|
||||
if (pos + need < texturecolumntablesize)
|
||||
return;
|
||||
|
||||
fixed_t *oldtable = texturecolumntable;
|
||||
|
|
@ -1563,7 +1557,7 @@ static void R_AllocTextureColumnTables(size_t range)
|
|||
if (texturecolumntablesize == 0)
|
||||
texturecolumntablesize = 16384;
|
||||
|
||||
texturecolumntablesize += range;
|
||||
texturecolumntablesize += need;
|
||||
texturecolumntable = Z_Realloc(texturecolumntable, texturecolumntablesize * sizeof (*texturecolumntable), PU_STATIC, NULL);
|
||||
curtexturecolumntable = texturecolumntable + pos;
|
||||
|
||||
|
|
@ -1604,6 +1598,7 @@ void R_StoreWallRange(INT32 start, INT32 stop)
|
|||
|
||||
maskedtexturecol = NULL;
|
||||
maskedtextureheight = NULL;
|
||||
thicksidecol = NULL;
|
||||
invscale = NULL;
|
||||
|
||||
//initialize segleft and segright
|
||||
|
|
@ -2135,9 +2130,9 @@ void R_StoreWallRange(INT32 start, INT32 stop)
|
|||
rw_toptexturemid += toprowoffset;
|
||||
rw_bottomtexturemid += botrowoffset;
|
||||
|
||||
// allocate space for masked texture tables
|
||||
R_AllocTextureColumnTables(rw_stopx - start);
|
||||
|
||||
// allocate space for masked texture tables
|
||||
if (frontsector && backsector && !Tag_Compare(&frontsector->tags, &backsector->tags) && (backsector->ffloors || frontsector->ffloors))
|
||||
{
|
||||
ffloor_t *rover;
|
||||
|
|
@ -2150,7 +2145,7 @@ void R_StoreWallRange(INT32 start, INT32 stop)
|
|||
|
||||
maskedtexture = true;
|
||||
|
||||
ds_p->thicksidecol = curtexturecolumntable - rw_x;
|
||||
ds_p->thicksidecol = thicksidecol = curtexturecolumntable - rw_x;
|
||||
curtexturecolumntable += rw_stopx - rw_x;
|
||||
|
||||
lowcut = max(worldbottom, worldlow) + viewz;
|
||||
|
|
@ -2329,14 +2324,17 @@ void R_StoreWallRange(INT32 start, INT32 stop)
|
|||
|
||||
ds_p->numthicksides = numthicksides = i;
|
||||
}
|
||||
|
||||
// masked midtexture
|
||||
if (sidedef->midtexture > 0 && sidedef->midtexture < numtextures)
|
||||
{
|
||||
// masked midtexture
|
||||
ds_p->maskedtexturecol = maskedtexturecol = curtexturecolumntable - rw_x;
|
||||
curtexturecolumntable += rw_stopx - rw_x;
|
||||
|
||||
maskedtextureheight = ds_p->maskedtextureheight; // note to red, this == &(ds_p->maskedtextureheight[0])
|
||||
|
||||
maskedtexture = true;
|
||||
|
||||
if (curline->polyseg)
|
||||
{
|
||||
// use REAL front and back floors please, so midtexture rendering isn't mucked up
|
||||
|
|
@ -2427,6 +2425,9 @@ void R_StoreWallRange(INT32 start, INT32 stop)
|
|||
if (rw_midtexturescalex < 0)
|
||||
rw_offsetx = -rw_offsetx;
|
||||
|
||||
if (numthicksides)
|
||||
ds_p->offsetx = rw_offsetx;
|
||||
|
||||
// calculate light table
|
||||
// use different light tables
|
||||
// for horizontal / vertical / diagonal
|
||||
|
|
|
|||
Loading…
Reference in a new issue